Question

Who proved transforming principle?

• A. Griffith.
• B. Avery.
• C. Watson.
• D. Franklin.

Hint:

Griffith's experiment provided the first evidence of genetic transformation, but it was later research by Avery, MacLeod, and McCarty that identified DNA as the transforming principle.

Answer 1

The Correct Option is A

In 1928, Frederick Griffith first demonstrated the transforming principle. His experiment revealed that a non-virulent bacterial strain could become virulent upon exposure to heat-killed virulent bacteria, suggesting a "transforming factor" caused the genetic change. This finding paved the way for Avery and colleagues to later identify DNA as this factor.